Occurrence and Distribution of Wheat Stripe Rust in Victoria and Susceptibility of Commercial Wheat Cultivars.

O'Brien, L; Brown, J. S.; Young, Rodrigo; Pascoe, I.G.

doi:10.1071/app9800014

Cited by 84 publications

(27 citation statements)

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“…tritici (Pst), was first reported in Australia in 1979 and resulted in an epidemic rendering several wheat cultivars susceptible (O'Brien et al 1980;Wellings 2007). A committed breeding effort of deploying seedling and adult plant resistance gene combinations in eastern Australia resulted in improved levels of resistance in Australian cultivars (Bariana et al 2001).…”

Section: Introductionmentioning

confidence: 98%

Chromosomal location of an uncharacterised stripe rust resistance gene in wheat

et al. 2009

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Section: Introductionmentioning

confidence: 98%

Chromosomal location of an uncharacterised stripe rust resistance gene in wheat

et al. 2009

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“…The pathogen of stripe rust of wheat has been in Asia and Europe for thousands of years and on the American continents for over one hundred years (Stubbs 1985;Line 2002). The pathogen was not in Australia and New Zealand until 1979 when it was first reported in Australia (O'Brien et al 1980). The pathogen was possibly introduced from Europe through urediniospore-contaminated clothing (Wellings and McIntosh 1987).…”

Section: Migration and Introduction Of The Pathogen Causing Stripe Rustmentioning

confidence: 99%

Epidemiology and control of stripe rust [Puccinia striiformisf. sp.tritici] on wheat

Chen

2005

Canadian Journal of Plant Pathology

1,015

598

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Stripe rust of wheat, caused by Puccinia striiformis f. sp. tritici, is one of the most important diseases of wheat worldwide. This review presents basic and recent information on the epidemiology of stripe rust, changes in pathogen virulence and population structure, and movement of the pathogen in the United States and around the world. The impact and causes of recent epidemics in the United States and other countries are discussed. Research on plant resistance to disease, including types of resistance, genes, and molecular markers, and on the use of fungicides are summarized, and strategies for more effective control of the disease are discussed.Résumé : Mondialement, la rouille jaune du blé, causée par le Puccinia striiformis f. sp. tritici, est une des plus importantes maladies du blé. La présente synthèse contient des informations générales et récentes sur l'épidémiologie de la rouille jaune, sur les changements dans la virulence de l'agent pathogène et dans la structure de la population et sur les déplacements de l'agent pathogène aux États-Unis et autour de la planète. L'impact et les causes des dernières épidémies qui ont sévi aux États-Unis et ailleurs sont examinés. La synthèse contient un résumé de la recherche sur la résistance des plantes à la maladie, y compris les types de résistance, les gènes et les marqueurs moléculaires, et sur l'emploi des fongicides, et un examen des stratégies pour une lutte plus efficace contre la maladie. Symptoms, disease development, and signs of the pathogenThe pathogen causing stripe rust infects the green tissues of plants of cereal crops and grasses. Infection can occur anytime from the one-leaf stage to plant maturity provided plants are still green. Symptoms appear about 1 week after infection, and sporulation starts about 2 weeks after infection, under optimum temperature conditions. The fungus forms tiny, yellow-to orange-colored rust pustules, called uredia. Each uredium contains thousands of urediniospores. A single urediniospore is too small to be seen with the naked eye, but spores on mass are yellow-to orange-colored and powdery. Stripes of uredia or necrosis are not formed on the leaves of seedlings, but as the plants age, generally after stem elongation. Depending on the level of plant resistance and the temperature, various amounts of chlorosis or necrosis appear (hypersensitive response), with or without sporulation. The necrotic stripes or elongated spots that form on leaves of adult plants are distinguishable from spots caused by necrotrophic pathogens. The pathogen of Can. ). stripe rust utilizes water and nutrients from the host plants, which weakens the plants. Environmental factors affecting stripe rustAs with other diseases, the three factors in the disease triangle are all essential for disease development. However, the development of stripe rust, compared with many other diseases, depends even more on the very specific weather conditions when pathogen inoculum (urediniospores) and susceptible host plants are present. The three most important we...

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“…Yellow (stripe) rust ( Puccinia striiformis f.sp. tritici , PST) has for centuries been a common disease of European wheat, but was detected on wheat in Australia only in October 1979 (O'Brien et al ., 1980), where it rapidly became established as an endemic disease. A single pathotype was introduced initially, and more than 20 new pathotypes have subsequently been detected in Australia and New Zealand, including some of economic importance to commercial wheat cultivars and others with no obvious selective advantage (Wellings & McIntosh, 1990).…”

Section: Introductionmentioning

confidence: 99%

Support for a stepwise mutation model for pathogen evolution in Australasian Puccinia striiformis f.sp. tritici by use of molecular markers

et al. 2001

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Since its initial detection in Australia in 1979, wheat yellow (stripe) rust (Puccinia striiformis f.sp. tritici) has evolved in Australia and New Zealand into more than 20 pathotypes with assorted virulence characteristics. This evolution is believed to have occurred in a stepwise fashion from an original single pathotype, with no subsequent new introductions. A combination of random amplified polymorphic DNA (RAPDs) and amplified fragment length polymorphisms (AFLPs) was used to examine the level of molecular variation in Australian and New Zealand isolates, and to compare this with variation amongst other isolates of P. striiformis. Using 60 RAPD primers on seven Australian isolates representing seven different pathotypes collected between 1979 and 1991, more than 300 potentially polymorphic loci were analysed and no polymorphisms were detected. Using the same primers on two UK isolates, 3% of loci showed a polymorphism. A similar level of polymorphism was found between UK isolates using AFLP primers, and between 5 and 15% of fragments were polymorphic between an isolate from the UK, an isolate from Denmark, and one from Colombia. However, no AFLP polymorphisms were found amongst 14 Australian and New Zealand isolates tested, at over 100 potentially polymorphic loci. The lack of molecular variation in the Australian and New Zealand collection is consistent with the stepwise mutation theory of pathotype evolution from a single introduction.

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Occurrence and Distribution of Wheat Stripe Rust in Victoria and Susceptibility of Commercial Wheat Cultivars.

Cited by 84 publications

References 3 publications

Chromosomal location of an uncharacterised stripe rust resistance gene in wheat

Chromosomal location of an uncharacterised stripe rust resistance gene in wheat

Epidemiology and control of stripe rust [Puccinia striiformisf. sp.tritici] on wheat

Support for a stepwise mutation model for pathogen evolution in Australasian Puccinia striiformis f.sp. tritici by use of molecular markers

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